Brian Bowles (Bantamweight)

UFC heavyweight Antonio Silva recently made headlines for the wrong kind of reasons after failing a post-fight drug test. The situation put a serious damper on the excitement stemming from Silva’s epic encounter with Mark Hunt at UFC Fight Night 33. Though “Bigfoot” wasn’t the first UFC fighter to submit a dirty sample in 2013, he’ll hopefully be the last with only a single show remaining. Here is a look back at ten of the organization’s athletes who faced punishment after showing use of a banned substance before a bout…